Timeline of the Irish Left

This diagram shows the historical development of left political groups and parties since the beginning of the 20th Century in Ireland.

About the timeline

Last updated 5th April, 2023

  • Dashed diagram line
    Dashed lines indicate links between groups, either through membership or cooperation.
  • Estimated end indicator
    Where an organisation's dissolution date is estimated, it is marked with a double line.
  • Linked diagram entry
    Click on grey entries for more information. (Light entries are not currently in the archive).
  • Diagram entry with truncated name
    Some names are shortened. Hover over any entry to reveal the full name.
  • Circular diagram entry
    Circular entries are concealed for space. Hover over these to show them in full.
  • Coloured diagram entry
    Colours are for visual clarity, and may not represent the party/group.
Workers' Solidarity Movement (WSM)
Women's Social and Progressive League
Belfast Anarchist Group
Belfast Libertarian Group
Anarchist Workers' Alliance
Anarchist Workers Group
Anti-Fascist Action (Ireland)
Dublin Anarchist Group
Anarchist Bookshop Collective
Dublin Anarchist Collective
Red Action
Working Class Action
International Marxist Tendency in Ireland
Friends of Soviet Russia
Belfast Anarchist Collective
Anarchist Federation in Ireland
Revolutionary Anarcha-Feminist Group (RAG)
Irish Anarchist Network
Socialist Women's Group
Belfast Women's Collective
Ballymena Anarchist Group
Syndicalist Solidarity Network
Organise! Anarcho-Syndicalist Federation
Organise! Ireland (Solidarity Federation)
James Connolly Workers' Republican Clubs
Revolutionary Socialist Party
Women Against Imperialism
Class War
Anti-Austerity Alliance (AAA)
Belfast Socialist Group
Socialist Party of Ireland (1949)
World Socialist Party
Frontline Collective
Cross-Community Labour Alternative
International Anti-Imperialist League
The Vanguard
Dawn Group
CWI Ireland
Militant Left
Militant Labour
Socialist Party
Dublin Trades Council
National Labour Party
Labour & Trade Union Coordinating Group
Labour & Trade Union Group
Workers Power
Labour Party
Cork Socialist Party
National Progressive Democrats
Liaison Committee of the Labour Left
Socialist Labour Party (SLP)
Cork Unemployed Action Group
Socialist Alternative
People Before Profit (PBP)
Socialist Republican Party
Irish Workers' Group
Young Socialists
Socialist Workers' Movement (SWM)
Socialist Workers' Party (SWP)
Socialist Workers' Network (SWN)
Independent Labour Party (UK)
Young Socialists Alliance
Revolutionary Marxist Group (RMG)
Movement for a Socialist Republic
Community and Workers Action Group
United Left
Socialist Party of Northern Ireland
Socialist Labour Action Group
Socialist Labour Alliance
United Labour Party
International Socialists
Campaign for an Independent Left
United Left Alliance (ULA)
Anti-Austerity Alliance - People Before Profit
Solidarity - People Before Profit
People Before Profit/Solidarity
People's Democracy
Socialist Democracy
Belfast Socialist Society
Clann na Poblachta
Left Revolutionary Group
Red Republican Party
Labour Party of Northern Ireland (LPNI)
Labour Party of Northern Ireland (LPNI)
Independent Left
Federation of Labour
Fianna Uladh
Northern Ireland Civil RIghts Association (NICRA)
Labour '87
Labour Coalition
Socialist Environmental Alliance (SEA)
Belfast Labour Party
Northern Ireland Labour Party (NILP)
Labour Party in Northern Ireland
Independent Labour Party (Ireland)
International Class War Prisoners Aid (ICWPA)
Commonwealth Labour Party
Newtownabbey Labour Party
Co-operative Party in Northern Ireland
United Front Labour
Independent Labour Group
Sligo/Leitrim Independent Socialist Organisation
An Rabharta Glas - Green Left
Irish National Unemployed Movement
Irish Unemployed Workers' Movement
Workers' and Unemployed Action Group (WUAG)
Irish Socialist Republican Party
Socialist Party of Ireland (1909)
Communist Party of Ireland (1921)
League for a Workers' Republic (LWR)
Spartacist Group of Ireland
James Connolly Workers' Club
Workers' Party of Ireland
League for a Workers' Vanguard
Workers' League
Ecology Party
Green Alliance
Green Party
Communist Party of Northern Ireland (CPNI)
Irish Marxist Society
Northern Ireland Ecology Party
Green Party in Northern Ireland
Fís Nua
Irish Worker League
Irish Communist Party
Revolutionary Workers' Party
Revolutionary Workers' Groups
Communist Party of Ireland
Irish Workers' League
Irish Workers' Party
Communist Party of Ireland (CPI)
Connolly Youth Movement
Connolly Youth Movement
Irish Workers' Group
Cork Communist Organisation
Cork Workers' Club
Peace Coalition
Social Democrats
Irish Workers' Union
Irish Communist Group
Left Alliance
Campaign for Labour Representation
Independents for Equality Movement
Independents 4 Change
Irish Communist Organisation (ICO)
British & Irish Communist Organisation (BICO)
The 1% Network
Right To Change
Saor Éire (1931)
Republican Congress
Communist Organisation in the British Isles (COBI)
Communist Formation
Aubane Historical Society
Irish Revolutionary Forces (IRF)
Saor Éire (Cork)
Limerick Socialist Organisation
Peace and Neutrality Alliance (PANA)
Anti-Tribute League
Irish Working Farmers' Congress
Socialists Against Nationalism
Democratic Socialist Party (DSP)
New Agenda
Democratic Left
Irish Socialist Network (ISN)
Lasair Dhearg
Socialist Party of Ireland (SPI)
Socialist Republican Collective (SRC)
Irish Republican Socialist Party (IRSP)
Comhairle na Poblachta
Irish Committee for a Socialist Programme
Independent Socialist Party (ISP)
Waterford People's Party
Official Republican Movement (ORM)
Sinn Féin (Official)
Sinn Féin The Workers' Party
The Workers' Party
Sinn Féin (Pre 1970)
New Earth
League of Communist Republicans (LCR)
Sinn Féin (Provisional)
Saor Éire
Revolutionary Struggle
Ripening of Time Collective
Republican Network for Unity
Republican Labour Party (RLP)
32 County Sovereignty Movement
National Political Front
National Party
National Democratic Party
Republican Sinn Féin
Social Democratic & Labour Party (SDLP)
Wolfe Tone Society
The Internationalists
Irish Communist Movement (Marxist-Leninist)
Communist Party of Ireland (Marxist-Leninist) (CPI-ML)
Anti-Imperialist Action Ireland
Progressive Unionist Party